The DataPlot model PM 1448 Print Mechanism incorporates a fixed
array thermal printhead with 448 heat element dots arrayed in a
single line across the width of the paper. The mechanism holds a
supply roll of thermal paper and causes that paper to move past the
printhead in steps of approximately .005 inch. When driven by the
DataPlot CB2448 Printer Control Board, the print mechanism steps the
paper forward, pausing after each step to heat selected dots. In
this manner, a dot matrix representation of alphanumeric and/or
graphic data can be printed.
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